Road-working machine



D. c'. MOWR Y.

ROAD WORKING MACHINE. 7 APPLICATION .FILED MAR. 13,1920.

I Patented Nov. 1,1921;

4 SHEETSSHEET I;

D. 'C. MOWRY.

RUAD WORKING MACHINE. APPLICATION FILED MAR. 13. I920.

1 395350. PatelitedNov. 1,1921.

4 SHEETSSHEET 2.

D. C. MOWRY.

ROAD WORKING MACHINE. APPLICATION FILED MAR. 13, 1920.

Patented Nov. 1, 1921.

4 SHEETS-SHEET 3.

am'uemtoz D. C. MOWRY.

ROAD WORKING'MACHINE. APPLICATION FIL'ED MAR.13. 1920.

Patented Nov. 1, 1921,

4 SHEETS-SHEET 4.

NITED STATES PATENT OFFICE.

ROAD-WORKING MACHINE.

Specification of Letters Patent.

' Patented Nov. 1, 1921.

' Application filed March 13, 1920. Serial No. 365,541.

To all whom it may concern":

Be it known that 1, DAVID C. MowRY, a

V citizen of the United States, residing at Geneva, in the county of Fillmore and State of Nebraska, have invented certain new and useful Improvements in Road-forking Machines, of which the following is a specification, reference being had to the accompanying drawings. I

This invention relates to certain improvements in road working machines, and it is an object of the invention to provide a novel and improved machine of this general char acter which may be employed with convenience and facility for a multiplicity of purposes.

It is also an object of the invention to provide a machine of this general'character having novel and improved means whereby the same may be effectively employed as a grader and wherein a mechanism whereby the device is particularly adapted for use.

as a grader may alsobe employed in connectionJwith a snow plow.

Another object of the invention is to provide a novel and improved machine of this general character wherein the supporting I members therefor comprise elements whereby the machine may be readilyused as a roller.

An additional object of the invention is to provide a novel and improved machine of this general character including .ground working member readily adjustable into or Furthermore, it is an object of the invention to provide a novel and improved machine of this general character wherein theground working member and the lower or receiving end portion of the elevating mechanism may be raised or lowered in unison so that the elevating mechanism, at all times, is in proper relation with respect to the ground working member.

The invention also embodies as an object a machine of this general character adapted to have employed in connection therewith a snow plow and wherein the snow plow is provided with novel and improved. means whereby the weight of the plow or a portion thereof may be supported by the surface over which the machine is traveling.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved machine whereby certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein:

Figure 1 is a view in top plan and somewhat'diagrammatic, illustrating a machine constructed in accordance with an embodiment of my invention;

Fig. 2 is a view in side elevation of my improved machine as herein embodied, the motor and one of the wings for the snow plow being.indicated by dotted lines;

Fig. 3 is a fragmentary view partly in section and partly in elevation, illustrating a mounting for the snow plow;

porting member or roller;

Fig. 5 is an enlarged fragmentary view partly in-section and partly in elevation,

illustrating the mounting for the elevator mechanism out of working posit1on so that the machine Fig. 6 is a fragmentary view partly in section and partly in elevation of the transmission mechanism. as herein employed;

Fig. 7 is a fragmentary view of a portion of the transmission mechanism for driving the elevator mechanism;

- Fig. 8 is a fragmentary view partly in elevation and partly in section of an elevator mechanism as herein embodied;

Fig. 9 is an enlarged sectional view taken substantially on the line 99 of F 'ig. 8;

Fig. 10 is an enlarged fragmentary view taken transverselyof the forward portion of the device and illustrating the mechanism whereby the angle of the scraper may be adjusted as required;

Fig. 11 is a frogmentary view partly in elevation, and partly in section, illustrating the means for imparting movement to one of the supporting beams for the scraper or plow;

Fig. 12 is an enlarged fragmentary view in side elevation, illustrating themounting of the scraper or plow;

Fig. 13 is a detailed sectional view taken substantially on the line 1313 of Fig. 12; Fig. 14 is a detailed sectional view taken substantially on the line 1414 of Fig. 12; Fig. 15 is a fragmentary view partly in plan and partly in section of the structure shown in Fig. 6; and v Fig. 16 is a fragmentary view partly in section and partly in elevation of a driving gear mounted upon one of the shafts for raising or lowering the scraper or plow.

As disclosed in the accompanying drawings, F denotes the substantially horizontally disposed main frame including the side beams 1 connected by the transverse beams 2.

The transverse beams 2 are connected by the substantially centrally located longitudinally directed beams 3. The rear portion of the side beams 1 and the intermediate portions 3 have rotatably engaged therewith the supporting elements 4, herein disclosed as rollers. The forward end portion of the frame F is supported by the element or roller 5, positioned at substantially the transverse center of the frame and of a length to substantially bridge the space between the elements or rollers 4 so that the machine may be employed with facility in rolling the ground.

The rollers 5 are supported by a yoke 6, suitably secured to the lower end portion of an upstanding spindle 7. The spindle 7 is rotatably engaged with the forward transverse beam 2 and the lower portion of the spindle and the adjacent portion of said forward. beam 2 is provided with the superimposed tables 7? and with which coact the anti-friction members 7 interposed therebetween. As herein disclosed, the anti-friction members 7 comprise a conventional type of ball bearings and provide means whereby the element or roller '5 may be properly turned to control the direction of travel of the machine and with a minimum of frictional,resistance.

The upper portion of the spindle 7 has 'aflixed' thereto an arcuate worm rack or seg ment 8 engaged by a worm 9. .The worm 9 is fixed to a rearwardly extending steering shaft 10 supported by suitable bearings 11. The rear end portion of the shaft 10 is provided with an operating wheel 12 so that the requisite turning of the spindle 7 may be readily accomplished.

Carried by a side beam 1 in close proximity to the longitudinal center thereof is a vertically disposed bearing 14 through which is loosely directed a vertically extending threaded shank 15. Engaged with the upper portion of the shank 15 is a worm member 16 whereby rotation of said worm member 16 in one direction imparts upward movement to the shank ,15 and vice versa. In mesh with the worm member 16 is a worm 17 carried by the inwardly and rearwardly directed shaft 18, supported by suitable bearings 19. The inner end portion .of the shaft 18'is provided with anoperating wheel 20, so that the shaft 18 may be properly rotated to effect the desired raising or lowering of the shank 15 The lower end portion of the shank 15 is operatively engaged, as at 21, with an upstanding member 22 carried by the plow or earth working member 23. The plow or member 23 also has engaged therewith a forwardly directed beam 24 operatively engaged, as at 25, with the lower end portion of a vertically disposed shank 26. The shank 26 is disposed through a bearing 27 carricd by the adjacent side member 1 of the r frame F. Engaged with the upper portion of the shank 26 and coacting with the hearing 27 is a worm member 28 in mesh with a worm 29. The worm 29 is carried by a rearwardly and inwardly directed shaft 30 supported by the bearings 31, and is pro-Y vided at its inner end portions with an operating wheel 32. By rotating the worm member 28, the shank 26 mayv be raised or lowered to control the depth of penetration of the plowor ground working member 23, I

while said plow or member 23 may be read- 5 ily raised to an inoperativeposition upon the requisite rotation of the shank 15.

Suitably secured, as at 33, to the sheth of the beam 24-is a forwardly directed draw lower or receiving end portion of the transversely directed and upwardly inclined elevating mechanism E. The elevating mechanism E includes the side boards 36 rotatably supporting adjacent their opposite ends the transversely disposed shafts 37. Fixed to the opposite end portions'of the shafts 37 are the sprockets 38 around which .are directed the endless side chains 39. Each of the links 39 of the side chains is provided with an inwardly disposed flange or wing 40 to which is adapted to be secured an end portion of a transversely disposed bar 41 comprised in the elevatormechanism. The bar 41 is preferably of steeland L-shape in cross section. Each of said links 39 is also provided with an outstanding stub shaft 42 on which is mounted a roller 43 adapted to travel along the trackway 44 carried by the adjacent side member 36 and whereby the upper or working stretch of the endless convever is held against sagging.

The opposite end portions of the lower shafts 37 are rotatably engaged with the inwardly directed arms 45 carried by the plow or earth, working member 23 so that the lower or receivin end portion of the elevating mechanism will be raised and lowered in unison with the plow or ground working member 23.

Engaged with the lower end portions of the side members 36 of the elevator mecl1- anism E are the lower extremities of the flexible members 46 coacting with the drums 47 carried by the shaft 48. The shaft 48 is suitably supported by the bearings 49 supported by a beam 3. The shaft 48 has fixed thereto a worm wheel or member 50 engaged with the worm 51 fixed to the shaft 18 so that positive means are provided for raising or lowering the receiving end portion of the elevator mechanism E in unison with the plow or ground working member 23. The upper end portions of the side members 36 have engaged therewith the lower extremities of the flexible members 52. Each of the members 52 is engaged with a drum 53' carried by a shaft 54. The shaft 54 is suitably positioned above the elevating mechanism E and is supported by the standards or posts 55, carried by the adjacent side beam 1. worm wheel 56 in mesh with a' worm 57 carried by a shaft 58. The shaft 58 is adapted to be ope-rated in any preferred manner so that the desired rotation may be imparted to the shaft 54 for raising or lowering the upper endportion of the elevating mechanism E as the occasions of practice may require. In Figs. 2 and 3, the driving means is diagrammatically disclosed. 59 denotes a driving shaft suitably supported by the intermediate beams 3 and in driving connection in a well known manner with internal gears carried by the rollers 4. Fixed to the shaft 59 substantially central thereof is a bevel gear 60 in connection with a bevel pinion 61 carried by the lower end portion of the vertically disposed shaft 62. The,

upper portion of the shaft 62 is provided with a cone gear 63 provided at its lower or major. portion with the supplemental bevel gear 64. 65 denotes a transmission shaft in driving connection with'the motor M and slidably mounted upon said shaft 65 are the gears 66, 67, and 68. The gear 66 coacts with the cone gear 63 and constitutes the low speed and the gear 67 coacts with the bevel gear 64 andconstitutes the high speed while the gear 68 also coacts with the bevel gear 64 and constitutes the reverse. The gears 66, 67, and 68 may be adjusted into or out of working position in any manner which best meets with the requirements ofapractice.

Also engaged with the cone gear 63 is a gear 69 carried by a shaft 70. The shaft 70 is telescopically engaged with the shaft 71 whereby the same may have relative endwise movement but rotates in unison there- The shaft 54 is provided with awith. By adjusting the shaft70 with respect to the shaft 71, the gear 69 may be engaged with or disengaged from the cone gear 63. The shaft 71 is also in driving connection with the upper shaft 37 of the elevator mechanism E.

The motor M is preferably of an internal combustion type, although I do not wish to be understood as limiting myself inthis respect. G denotes a tank suitably supported by the frame F to contain a supply of gasolene or kindred fuel and also suitably mounted upon the frame'F is the tank T, adapted to contain a supply of water. The tanks G and T are each preferably of a capacity of about 30 gallons.

Each of the beams 1 is of an I-type and clamped to the forward end portion of said beam is a channel beam 72 arranged inwardly thereof and whereby the guideway 73 is provided for the sliding channel beam 7 74. Rotatably supported by the beams 72 is a transversely disposedshaft 75 having its opposite-end portions extending within the guideways 73 and each end portion of the shaft within a guideway 73 has afiixed thereto a gear 76. One ear 76 meshes with a rack 77 carried by .t e lower flange of the coacting beam 74 while the second gear 76 coacts with a rack-77 carried by the upper flange of the coacting beam 74. The central portion of the shaft 75 has fixed thereto a worm-wheel 78 meshing with a worm 79. The worm? 9 is fixed to a rearwardly directed shaft 80 provided at its rear extremity with an operating wheel 81 whereby desired rotation may be imparted to the shaft 75.

As the shaft 75 is rotated, one of the beams 74 will be expanded and the other retracted.

The forward end portion of each of the beams 7.4 has loosely directed therethrough a vertically disposed rod 82 and in threaded engagement with the upper portion of the rod 82 and contacting with the upper flange of the beam 74 is a worm member 83 in mesh with a worm 84. The worm 84 is suitably fixed to a shaft 85 extending rearwardly and longitudinally of the adjacent beam 1. The forward end portion of the shaft 85 is rotatably supported by the bearing 86, carried by the beam 74, and the opposite end portion of the shaft 85 is loosely directed through the bearings 87 carried by the adjacent beam 1. Mounted upon the shaft 85 between the-bearings 87 for rotation with said shaft is a gear 88. The shaft 85 has free endwise movement through the gear 88 so that desired compensationwill be had for endwise adjustment of the beam 74, the shaft 85 being preferably angular in cross section. Secured, as at 89, to the lower end portion of the rod or shank 82 is a vertically disposed rigid arm 90, having its lower end portion secured to a block or shoe 91. The block or shoe 91 is provided with a pair of rearwardly directed and vertically spaced ears 92 between which is secured, as

v at 93, the forward end portion ofa bracing rd'94. The rod 94 extends upwardly and 1 rearwardly and has its rear end portion secured, as at 95, to the adjacent side beam 1.

The blocks 91 are adapted to have secured thereto the end portions of a scraper S, asindicated by dotted lines in Fig. 1, and said scraper can be adjusted at a desired angle transversely of the machine by relative adjustment' of the beams 74 one with respect to the other. This scraper S may be'of any 7 91 and said plow A is preferably V-shape inf-top plan with its, apex forwardly di- 1 rected'and'of a vertical cross sectional configuration, as particularly illustrated "Fig. 1 .The' lower portion of the plow A preferably comprises a removable member 196. The member 96 has contact with thew road or other surfaceandb'y having'the sameremovable, it can be readily replaced should it become-undulywornQ I also find 5 it of" advantage to I connect the plow A through the medium of the loop or yoke 97 carried thereby with the arm or'shank 90 and'through which yoke or'loop97 said arm is'directed as is partieularly illustratedin Fig. 13. I also find it of advantage to provideeach end portion of the plow A with a rearwardly directed extension or abutment 98 adapted to engage the outerend of the adjacent beam 7 1 so that the'functioning of the plow A is assured. The rods or shanks 90v operate to raise or lowerfthe blocks orshoes 91, as the occasions-of practice may require and this is accomplished by imparting the requisite rotation to "the shafts 85, Each of the shafts; 85,- in the present embodiment of my invention, is rotated through the medium of ashaft 99 and I v in driving connectiomwith the gear 88. The

shaft 99 extends rearwardly of the frame F and is provided at its rear end portionwith en the plow A. 's in use, it is also of advantage to provide means for supporting the apex portion thereof, and in order to provide for this support, the front portion of the frame Fis provided with the forwardly directed bracket 101, having loosely disposed through the outer end portions thereof a rod or shank 102. The lower end portion of the rod or shank 102. is opera tively engaged at the central portion with a substantially U-shape frame X. The frame X is ositioned rearwardly of the plow A and t e free end portions of the side arms 103 of said frame X are pivotally engaged with the plow A at opposite sides of its apex andwhereby said frame X is capable of vertical swinging movement. Rotatably supportedbetween the side arms or members 103 of the frame X is a roller 101 which engages the sufface upon which the machine is traveling. By this means, the apex portion or point of the plow is efi'ectively maintained in working position and the shank or rod 102 materially relieved of the weight which would otherwise be imposed thereon.

The upper end portion of the rod or shank 102 has threaded thereon a worm wheel or member, 105 engaging the upper face of the bracket 101. The wheel or member 105 is in mesh with a worm 106 carried bythe rearwardly directed shafts 107. As herein embodied, the. shaft 107 comprises a plurality of articulated sections and the rear end portion of said shaft 107 is provided with an operating'wheel 108 /whereby the requisite rotation may beimparted to the shaft 107 to raise or lower the shankor rod 102 as the occasions 'of practice may necessitate. WVhen'the rod or shank 102 is raised, the frame moves'upwardly until it .comes into contact with a horizontally disposed bearing or rod-109 connecting the side portions of the plow A so that the continued upward movement- :of therod or shank .l02wi'll raise the-point or apex portion of the plowj.A. The bar or rod 109 serves as 'a brace or reinforcing medium andwhich functioning is further facilitated by-thesupplemental bars or rods 110 interposed between said bar or rod 109 and 'theplowA. 7

It is also tobeunderstood that the roller 104 is of-a particular, advantage in the event that theelement or roller 5 should run into a ditch or furrow as said roller 104, under suchconditions, raises the point or apex portionfof the plow. A and thereby prevents injury to the machine.

I also find it of particular advantage to provide each end portion of the plow A with the rearwardly extending and outwardly inclined wings WV which serve -to throw. the snow lifted by the plow to one side in substantially the same manner as the mold board of anearth working plow apparatus.

From the foregoing description, it is thought to be obvious that a machine-cons structed in accordance with my invention is particularly welladapted for use by reason ofthe convenience and. facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modiformation of the several parts herein shown in carrying out my invention in practiceexcept as hereinafter claimed.

I claim 1. A machine of thecharacter described comprising a portable frame, a plow supported thereby and substantially V-shape in. plan with the apex thereof forwardly directed, a rearwardly directed frame pivota-lly engaged with the plow at the apex portion thereof for swinging movement in a vertical direction, a ground engaging member carried by-said frame, means for vertically swinging said frame, and a member carried by the plow with which the frame engages upon its upward movement to elevate the apex portion of the plow. I,

2. A machine of the character described comprising, in combination, a portable frame, a plow supported thereby and substantially V-shaped in plan with theapex thereof forwardly directed, a rearwardly directed frame pivotally engaged with the plow at the apex portion thereof for swinging movement in a vertical direction, a ground engaging member carried by said frame, a horizontally disposed rod connectstantially V-shaped in plan with the apex thereof forwardly directed, a rearwardly directed frame pivotally engaged with the ing movement in a vertical direction, a ground engaging member carried by said frame, a horizontally disposed rod connecting the side portions of the plow and .eX- tending above the frame, means for vertically swinging the frame, said frame engaging the rod upon its upward movement to elevate the apex portion of the plow, and reinforcing members connecting the rod and the plow at opposite sides of the apex of the plow.

In testimony whereof I hereunto afiix my signature.

DAVID C. MOWRY.

plow at the apex portion thereof for swing- 

